Identification of two novel inactive DFR-A alleles responsible for failure to produce anthocyanin and development of a simple PCR-based molecular marker for bulb color selection in onion (Allium cepa L.).

Abstract excerpt

Two novel inactive alleles of Dihydroflavonol 4-reductase-A (DFR-A) were identified in yellow onion (Allium cepa L.) cultivars and breeding lines from Korea and Japan. Unlike the previously reported inactive yellow DFR-A allele, designated as DFR-A ( TRN ) , in which the 3' portion of the coding sequences was deleted, an allele containing a premature stop codon, DFR-A ( PS ) , was isolated from the majority of...

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